This kernel carries 2 critical data loss fixes, one "ext4: fix data corruption caused by unwritten and delayed extents" , the other one is regarding using raid0 and trim on ssds, hence the critical status

Advisory will follow tonight

Everything seems fine with kernel-tmb-laptop-3.14.43-1.mga4-1-1.mga4 on my Acer x86-64 Laptop: KDE 4 , Firefox, Extremetuxracer, Wifi, SMB, VLC, etc.

CC: (none) => shlomif

Advisory:

Updated kernel-tmb fixes security, critical data corruption and pdata loss issues

This kernel-tmb update is based on upstream -longterm 3.14.43 and fixes
a security issue, and critical data corruption and data loss issues:

drivers/vhost/scsi.c: potential memory corruption (CVE-2015-4036)

ext4 filesystem has a bug that make it possible to lose whole file system
block worth of data when we hit the specific interaction with unwritten
and delayed extents in status extent tree.

when using software raid 0 on SSDs along with trim/discard, any delete or
modification of files can lead to random destruction on the filesystem.
(this regression was introduced in upstream 3.14.41)

For other fixes in this update, see the referenced changelogs.

References:
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.42
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.43

Everything seems fine with kernel-tmb-desktop-latest-3.14.43-1.mga4 on my Acer x86-64 Laptop: KDE 4 , Firefox, Extremetuxracer, Wifi, SMB, VLC, urpmi/urpme, etc. etc.

Tested each kernel with nvidia*, fglrx, broadcom-wl, virtualbox, vboxadditions & libafs dkms builds

Whiteboard: (none) => mga4-32-ok

In VirtualBox, M4, KDE, 64-bit

Package(s) under test:
kernel-tmb-desktop-latest

default install of kernel-tmb-desktop-latest

[root@localhost wilcal]# uname -a
Linux localhost 3.14.41-tmb-desktop-1.mga4 #1 SMP PREEMPT Thu May 7 07:30:26 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost wilcal]# urpmi kernel-tmb-desktop-latest
Package kernel-tmb-desktop-latest-3.14.41-1.mga4.x86_64 is already installed

System boots to a working desktop. Common apps work. Screen dimensions are correct.

install kernel-linus-latest from updates_testing

[root@localhost wilcal]# uname -a
Linux localhost 3.14.43-tmb-desktop-1.mga4 #1 SMP PREEMPT Thu May 21 22:41:45 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost wilcal]# urpmi kernel-tmb-desktop-latest
Package kernel-tmb-desktop-latest-3.14.43-1.mga4.x86_64 is already installed

System boots to a working desktop. Common apps work. Screen dimensions are correct.

Test platform:
Intel Core i7-2600K Sandy Bridge 3.4GHz
GIGABYTE GA-Z68X-UD3-B3 LGA 1155 MoBo
GIGABYTE GV-N440D3-1GI Nvidia GeForce GT 440 (Fermi) 1GB
RTL8111/8168B PCI Express 1Gbit Ethernet
DRAM 16GB (4 x 4GB)
Mageia 4 64-bit, Nvidia driver
virtualbox-4.3.26-1.mga4.x86_64
virtualbox-guest-additions-4.3.26-1.mga4.x86_64

CC: (none) => wilcal.int
Whiteboard: mga4-32-ok => mga4-32-ok mga4-64-ok

This update works fine.
Testing complete for mga4 32-bit & 64-bit
Validating the update.
Could someone from the sysadmin team push this to updates.
Thanks

Keywords: (none) => validated_update
CC: (none) => sysadmin-bugs

Advisory uploaded.

Whiteboard: mga4-32-ok mga4-64-ok => advisory mga4-32-ok mga4-64-ok

An update for this issue has been pushed to Mageia Updates repository.

http://advisories.mageia.org/MGASA-2015-0238.html

Status: NEW => RESOLVED
Resolution: (none) => FIXED